<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        table{
            width: 500px;
            margin: 100px auto;
            border-collapse: collapse;
            text-align: center;
        }
        td ,th {
            border: 1px solid #333;
        }
        thead tr {
            height: 40px;
            background-color: #ccc;
        }
    </style>
</head>
<body>
    <table cellspacing="0">
        <thead>
            <tr>
                <th>姓名</th>
                <th>科目</th>
                <th>成绩</th>
                <th>操作</th>
            </tr>
        </thead>
        <tbody>

        </tbody>
    </table>
    <script>
        var datas = [{
            name:'李全太',
            subject:'JavaScript',
            score:100
        },
        {
            name:'黄江阳',
            subject:'JavaScript',
            score:90
        },{
            name:'邓鸭蛋',
            subject:'JavaScript',
            score:61
        },{
            name:'肖龙倩',
            subject:'JavaScript',
            score:39
        },{
            name:'闻敏',
            subject:'JavaScript',
            score:18
        },{
            name:'闻敏',
            subject:'JavaScript',
            score:18
        },{
            name:'闻敏',
            subject:'JavaScript',
            score:18
        },{
            name:'闻敏',
            subject:'JavaScript',
            score:18
        },{
            name:'闻敏',
            subject:'JavaScript',
            score:18
        },{
            name:'闻敏',
            subject:'JavaScript',
            score:18
        },{
            name:'闻敏',
            subject:'JavaScript',
            score:18
        }
    ];
    var tbody = document.querySelector('tbody');
    for (var i = 0; i <datas.length; i++) {
        var tr =document.createElement('tr');
        tbody.appendChild(tr);
        for( var k in datas[i]) {
           var td = document.createElement('td');
           td.innerHTML = datas[i][k];
           tr.appendChild(td);
        }
        var td = document.createElement('td');
       
        tr.appendChild(td);
        td.innerHTML = '<a href = "javascript:;">删除<a/>';
    }
    var as = document.querySelectorAll('a');
    for ( var i = 0; i <as.length ; i++ ) {
        as[i].onclick = function () {
            tbody.removeChild(this.parentNode.parentNode);
        }
    }
    </script>
</body>
</html>